Valve-grinding apparatus



Jan. 2, 1923.

- L. B. BAUHAUS.

- VALVE-GRINDING APPARATUS.

mu) AUG.31, 1921.

INVENTOR.

A TTORA/E y Jan. 2, 1923.

L. B. BAUHAUS. VALV E GRINDING-APPARATUS. men AUG.31, 1921.

Q N m ax,

2 SHEETS-SHEEI 7.

INVENTOR.

A TTORNEY Patented Jana 2, 121? LOUIS B. BAUHAUS, OF SANTA BARBARA, CALIFORNIA.

VALVE-GRINDING APPARATUS.

Application filed August 31', 1921. Serial No. 497,230.

To aZZ whom it may concern.

Be it known that I, LOUIS B. BAUHAUs, a citizen of the United States, residing at Santa Barbara, in the county of [Santa Barbara and State of California, have invented new and useful Improvements in Valve Grinding Apparatus, of which the follow ing is a specification.

This invention relates to valve grinding apparatus and more particularly to a pneumatic valve grinder for grinding valves of automobile engines, or other types of valves wherein the apparatus could be used and has for its object toprovide a novel means by which the valve can be very readily ground with the least expenditure of energy on the part of the operator.

Another object is to provide a device of this kind that can be readily assembled and dismantled for inspection of the same and also to provide means for regulating the speed of oscillation of the valve.

Other objects and advantages will be seen and the invention readily understood from the following description of the accompanying drawings in which:

Fig. 1 is aside elevation of the valve grinding apparatusvwith the casing partly broken away showing the valve actuating means in elevation. I

Fig. 2 is a plan view the casing being broken away showing the valve actuating means in full. 1

Fig. 3 is a central longitudinal vertical section of the device.

Fig. 4 is a transverse section on line 4 4 of Fig. 2.

Fig. 5 is a transverse section on line 5-5 of Fig. 2.

The invention is shown as comprising a casing 1 having one end closed and a base 2 screw threaded in the other end of the casing 1. Extending rearwardly from the base 2 are slotted guide supports 3 secured at their outer ends to one end of a pneumatic engine 4 of the piston type or other suitable reciprocating mechanism.

Projecting forwardly from the base is a valve engaging member 5which can be of any suitable construction so as to be adapted to fit different types of valves and which. is fastened by any suitable means to an actuating rod 6 having an enlarged end portion 7 screw threaded into a cylinder 8 and rigidly fixed thereto so as to prevent relative rotation bet een he same, The means groove 11.

provided for oscillating the valve as is ordinarily done in the process of grindingf rotatably supported at its other end as by a cap 10 rigidly fastened to the supports 3. A helical groove 11 is formedin the walls of the casing, 8 vided for causing rotation of the casing through the helical grooves when the piston of the engine 4 is drawn in one direction and when the piston has reached its for ward limit means are provided for auto: matically reversing the direction of the pis ton so as to cause rotation of the casing 8 in the opposite direction which will'provide the necessary oscillation of fthe valve 'in order that the same may; be properly ground. Such meansis provided by having the piston 12 of the engine 41 mounted upon a piston rod 7 13 slidable through a packing gland 14 and the actuating medium is controlled by the well known D-type'of valve 15 ordinarily used in steam engines with-the ordinary inletand exhaust ports.

A suitable inlet pipe 16v leads into the valve chamber andhas a suitable controlling means as a valve 17 of the push but-I ton type for controlling the actuating fluid into thevalvechamber. 1

The opposite end of the rod 13 has guide member 18'slidable in the casing 8 and pro-' jecting through the member 18 and out each side of the casing 8 through the helical. groove is a guide pin 19 slidable in the slot 20 formed by the guide supports 3 positioned on each side of the cylinder 8 and it will be seen that as the piston 12 'reciprocates the pin 19 being held against rotation by the guide supports 3 will cause the casing 8 to be partially rotated due to the helical Means provided for actuating the valve 15 to reverse the direction of the piston 12 comprises substantially a rod 21 j'ournaled on one of the guide support members as by bean ing members 22 and depending from the rod 21 and substantially transversely of the slot 20 is a finger 23 adapted to engage the projecting end of the rod 9 when it has almost completed its forward stroke which will and means are procause a link 24; pivotally carried by the rod support 29.

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to engagea le'a'i spring 32 which Will hold the cam 1n pos-1t1on ,clue to'the pin filibe n'g ofii center anclthis in turn through the lugs 26 liold'sjthevalve in position iuntil the rod 19 has nearlvcompleted" its reverse stroke When-it"then engages a seeondytlepending;

,. H finger 33 which 'vvilieause the rod to throw ""the ogpposlte engag ng 1326? around, toenv-gethe fopposite face of midi-S1133 to med fthe ,valver stem' extending irear vardiy from thejva-lvef 1he valve rod is"shclahly journaled 1113011 a orossgmemfber fastened to one siderof each" otthe guide members and-thereiare positionedstops upon the rod so -as to, limit"the; motion of the valve and give the-;sam e proper timing I Witlr relation 'jto the pistoni various ohang'es mavybeqmade in the (letails-=oi construction bythtise slei-lledin the art i vitho'ut I epa'rtingfrom thespi ritoli my in vent-i on Qas se i'ortl n theappendedtlaiins.

Willi-at is claimed is 1.? A valve; grinding apparatus comprising a tubular member sustained for rotational movement and, having a; helical slot therein, a vttlve engaging member-carried by said memben 'ifeciprooating'means Within the first member, apln carried by said reciprocating means and movable ilrsaid slot guide supportsv slida bly receiving the-ends of'gsaid pin, a reciprocating motor, a I'GClPIOGittIDgVfilVB for said motor a disk operatively connected 1, ,tousaid valve aeamunounted for oscillatory movement to move said disk first in one di- -reetion-andlithen in the other for actuating the valve, a rod operatively connected to '-the" :am, and fingers'formed on the rod and adapted to be engaged by said pin for effecting movement of the rod first in one directionand then theother torefi'eot oscillatory movement of said cam.

. 2. A valve grinding apparatus comprising" a tubular men'iber sustained for rotational movement and havinga 'helicalslot therein, a valve engaging member oari iedp-bysaid. member, reciprocating means vvitfhin thefirst member; a pin carriedloy-strict-reciprocating means and movable ire-said 'slot',- guide-supa reciprocating: motor, a reciprooatingjvalve for said;- motor; aiiclislr operatively' eonneet'ed to, said valve, a cannnounted-for os'eillatorv movement to movesaidj disk first inone direotion and; 'then'i the 'otheifrforactuating the valve a project-ion formeda-oir thecam;

a springengageable With thenprojotionto effect a rapidmovement of the eam when the, latteiflis moved-in either, di-reotion; a rod operatively oouneotedto the-oamg and fingers formed-on therodand adapted tof'be' engaged by said-pin for efieotin t movement o f'the rod-first; in one", ireetion-and then in the other "to "efi eet oscillatorymovement of said cam. r

,lin'testimony whereof I name to 't'his spee-i'fieation.

LOUIS simmer-mes;

have signed my 

